#netadmin
New proposal instead of having Quarantine-VLAN on an IXP:

Make the netadmin write a Netplan config (without local testing) 100% correct and applying at the first try = you will be connected and otherwise, try again in 1 Year.

Credits to the idea to @wrmsr
November 9, 2026 at 5:10 PM
If you know anyone working in ICT infrastructures (SysAdmin, NetAdmin, InfoSec, DevOps, etc.), offer them a hug tomorrow.

They will likely have a pretty bad day with PHP’s vulnerability being disclosed.
- - -
Si vous connaissez quelqu'un qui travaille dans les infrastructures TIC (SysAdmin […]
Original post on mstdn.moimeme.ca
mstdn.moimeme.ca
October 21, 2026 at 3:59 AM
CVE-2026-20245

Cisco Catalyst SD-WAN Manager CLI command injection. Local netadmin user uploads a crafted CSV to run commands as root. Exploited in the wild to create a rogue "troot" root account plus anti-forensic cleanup.

nvd.nist.gov/vuln/detail/...
NVD - Home
nvd.nist.gov
October 18, 2026 at 10:23 AM
Oh and, this is not in support/defense of OAI/recent events but it seems like parts are going through vendors that seem to know what they're doing. Nothing obvious or ~advanced/complicated works and is very loud. You have to be a netadmin/sec team's model nightmare employee
October 3, 2026 at 9:50 PM
Oh, I got one of the companion outfits this year: butch burned out netadmin
October 2, 2026 at 1:35 PM
Here we go again with Cisco Catalyst SD-WAN Manager delightfully handing netadmin keys to unauthenticated strangers over URI encoding blunders. Anyone unlucky enough to run this kit gets to suffer the consequences of actively exploited zero-days in the wild. Since Cisco kindly co...

Read full story
October 1, 2026 at 6:33 AM
Cisco Leaves New SD-WAN Zero-Day Unpatched: The Exploit Chain That Bypasses Authentication to Root
Cisco Leaves New SD-WAN Zero-Day Unpatched: The Exploit Chain That Bypasses Authentication to Root
Cisco confirmed active exploitation of CVE-2026-20245, a command injection flaw in Catalyst SD-WAN Manager with no patch or workaround available. Exploitation requires netadmin privileges, obtainable only through previously patched authentication bypasses (CVE-2026-20182 or CVE-2026-20127, both CVSS
deafnews.it
September 30, 2026 at 3:10 PM
#BigCloudFabric is the ideal physical fabric for @dellemc @vmware #VxRail, integrating with a VxRail cluster to offer auto provisioning of the network for VxRail + NetAdmin visibility for end-to-end troubleshooting. https://sprou.tt/1j6SLp6HWOb
November 16, 2024 at 9:00 PM
born to resolve
propagation is a fuck
query 'em all 1989
I am DNS man
410,757,864,530 lookups

#DNS #netadmin #cloud #awsoutage #azureoutage
November 12, 2025 at 10:23 PM
i'm considering making some personal poses to better tell her story as well.

she's into the whole parkour 'n mobile remote hacking shit

(and i am currently learning SysAdmin/NetAdmin IT sooooo yeah... im fully in my digital era now lol)
June 19, 2025 at 12:02 AM
that team-building moment where you and the netadmin run into each other at the mop closet because you independently noticed that someone's aeropress fell over went splash in the lunch room
December 11, 2025 at 6:04 AM
in my case I think the tradeoff was worth it for actually _doing something_ to improve my home networking situation, someone who's more familiar with netadmin might not benefit so much. I've heard good things about Mikrotik too
April 5, 2025 at 7:22 PM
100% of every sysadmin, netadmin, devops engineer, security engineer, and everyone else who thinks being able to control your own network fabric is a big deal, and by blindly going to the cloud you give up *A LOT* of visiblity for convenience, reading this headline:
July 13, 2023 at 6:38 PM
Netadmin keeping the network safe
August 22, 2025 at 4:45 PM
Cisco warns of CVE-2026-20245, an unpatched Cisco Catalyst SD-WAN Manager flaw exploited in the wild. Authenticated attackers with netadmin access can run commands as root via crafted files. #Cisco #SDWAN #CVE2026
Cisco Warns of 7th SD-WAN Zero-Day Exploited in 2026
Cisco warned customers about CVE-2026-20245, an unpatched Cisco Catalyst SD-WAN Manager vulnerability that is being exploited in the wild and can let an authenticated attacker run commands as root. The flaw requires netadmin privileges and has been linked to a series of Cisco SD-WAN exploits in 2026, including attacks previously associated...
www.hendryadrian.com
June 5, 2026 at 11:00 AM
I grew up on windows, when I was 5? I messed up our 3.1 theme so badly Compaq had to send a guy out to fix it LMAO. Also did two years of Server 03 netadmin training so I've been pretty deep in the shit. It's good and it's come a long way. Powershell beats the brakes off of Linux/Mac
May 5, 2026 at 7:56 PM
Told my family about the PiHole I set up at my apartment and now I'm my entire families netadmin
December 27, 2024 at 4:40 PM
Attackers exploiting unpatched Cisco SD-WAN flaw
Cisco warns customers of an actively exploited high-severity vulnerability in Catalyst SD-WAN Manager, an enterprise network management system that has been targeted by hackers multiple times in the past. Located in the command-line interface, the flaw allows authenticated attackers to escalate privileges to root and take over the entire system. The vulnerability, tracked as CVE-2026-20245, is rated 7.8 (high) on the CVSS scale instead of critical because it requires local access and netadmin privileges to exploit. These privileges can be obtained via stolen credentials or by exploiting authentication bypass flaws, such as CVE-2026-20245 or CVE-2026-20127, which were fixed in May and February, respectively. The older authentication bypass flaws were exploited by a cyberespionage threat actor Cisco Talos tracks as UAT-8616. It’s not clear whether the new vulnerability was exploited by the same group as part of its campaigns against enterprise SD-WAN deployments, but it was reported to Cisco by Google’s Mandiant division, which specializes in incident response. “This vulnerability is due to insufficient validation of user-supplied input,” Cisco said in its advisory. “An attacker could exploit this vulnerability by uploading a crafted file to the affected system. A successful exploit could allow the attacker to perform command injection attacks on an affected system and elevate their privileges as the root user.” ## Mitigation While a patch is not yet available, Cisco recommends upgrading to the latest available version to ensure the previous authentication bypass exploits don’t work. Customers should also check the configuration of their edge devices because the company has observed cases where exploitation of this flaw resulted in configuration changes. Before upgrading SD-WAN deployments, users are advised to save all relevant log files and issue the `request admin-tech` command to collect the `admin-tech` file from each of the control components. Cisco has published indicators of compromise that should be visible in the `scripts.log` file from `/var/log/`. However, it’s hard to distinguish malicious and legitimate command calls in the logs, so if the indicators of compromise are present in the logs, customers should contact the Technical Assistance Center. “If the logs show indicators of compromise and the system is confirmed to be compromised, applying the software update alone will not resolve the vulnerability,” the company said. “In such cases, follow the specific remediation steps that will be provided by the Cisco Technical Assistance Center (TAC) to help secure the system.”
www.csoonline.com
June 9, 2026 at 6:22 AM
If you're interested in any of these or similar topica, please consider following @geokdev.bsky.social and myself.

#sysadmin #netadmin #devops #PowerShell #bashscripting
System admins / network admins , infrastructure engineers and devops folks : let's connect.

We need to build a meaningful community and a nice for you page. Reading about configs, powershell, bash, tooling and tips.

Reach out and let's connect!
October 27, 2024 at 7:48 PM
Cisco's PSIRT confirmed attackers are exploiting a flaw in Catalyst SD-WAN Manager: an authenticated netadmin uploads a crafted file and runs commands as root, in some cases pushing config to edge devices. No fix, no workaround yet. What are you doing while waiting on a patch?

#security
June 7, 2026 at 1:42 PM
If you're running Cisco Catalyst SD-WAN Manager: patch against Cisco's advisory, retain audit logs before upgrading, and review them for anomalous activity from netadmin-level accounts.

📍Read the full article by Kevin Poireault: www.infosecurity-magazine.com/news/cisco-v...
Cisco Vulnerability Exploited Months Before Disclosure, Google Warns
A high-severity flaw in Cisco Catalyst SD-WAN Manager disclosed in early June was exploited as early as March
www.infosecurity-magazine.com
June 29, 2026 at 11:56 AM
"Whoever used this vulnerability had working knowledge of it in this period while defenders had none."

The exploitation path: an attacker w/ existing netadmin privileges on Cisco Catalyst SD-WAN Manager could escalate to root via a crafted CSV upload through the request tenant-upload CLI command.
June 29, 2026 at 11:56 AM
Attackers exploiting unpatched Cisco SD-WAN flaw
Cisco warns customers of an actively exploited high-severity vulnerability in Catalyst SD-WAN Manager, an enterprise network management system that has been targeted by hackers multiple times in the past. Located in the command-line interface, the flaw allows authenticated attackers to escalate privileges to root and take over the entire system. The vulnerability, tracked as CVE-2026-20245, is rated 7.8 (high) on the CVSS scale instead of critical because it requires local access and netadmin privileges to exploit. These privileges can be obtained via stolen credentials or by exploiting authentication bypass flaws, such as CVE-2026-20245 or CVE-2026-20127, which were fixed in May and February, respectively. The older authentication bypass flaws were exploited by a cyberespionage threat actor Cisco Talos tracks as UAT-8616. It’s not clear whether the new vulnerability was exploited by the same group as part of its campaigns against enterprise SD-WAN deployments, but it was reported to Cisco by Google’s Mandiant division, which specializes in incident response. “This vulnerability is due to insufficient validation of user-supplied input,” Cisco said in its advisory. “An attacker could exploit this vulnerability by uploading a crafted file to the affected system. A successful exploit could allow the attacker to perform command injection attacks on an affected system and elevate their privileges as the root user.” ## Mitigation While a patch is not yet available, Cisco recommends upgrading to the latest available version to ensure the previous authentication bypass exploits don’t work. Customers should also check the configuration of their edge devices because the company has observed cases where exploitation of this flaw resulted in configuration changes. Before upgrading SD-WAN deployments, users are advised to save all relevant log files and issue the `request admin-tech` command to collect the `admin-tech` file from each of the control components. Cisco has published indicators of compromise that should be visible in the `scripts.log` file from `/var/log/`. However, it’s hard to distinguish malicious and legitimate command calls in the logs, so if the indicators of compromise are present in the logs, customers should contact the Technical Assistance Center. “If the logs show indicators of compromise and the system is confirmed to be compromised, applying the software update alone will not resolve the vulnerability,” the company said. “In such cases, follow the specific remediation steps that will be provided by the Cisco Technical Assistance Center (TAC) to help secure the system.”
www.networkworld.com
June 9, 2026 at 3:10 AM